Discount Water Filters and Air Filters at Discount Filter Store.com

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  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
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  • You’re guaranteed to find expert help!

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Water Filtration Systems & Filters

Discount Filter Store carries a wide variety of water filters and filtration systems to make sure that you have clean water everywhere you need it. We offer camping water filters, RV filters, water bottles for travelers on the go. Purify your office or home’s drinking water with countertop filter systems, commercial grade filters, and whole house filter systems. Our filters are protected by our 100% Price Match Guarantee. We are happy to offer you the lowest possible price on our filters, matching any lower price listed by competitors.

Items 1 to 48 of 406 total

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  • 55898C Halsey-Taylor Drinking Fountain Filter Replacement Cartridge

    55898C Halsey-Taylor Water Filter Cartridge Replacement

    $95.19
    MSRP: $160.99
    Save 41%
  • 36005 Hydrologic SmallBoy De-Chlorinator and Sediment Filter System With Upgraded KDF
  • F-601R InSinkErator Instant Hot Water Dispenser Replacement Filter Cartridge (2-Pack)
  • 8014931 Katadyn Vario Backcountry Series Microfilter Water Filter
  • 31050 Hydrologic TallBoy Sediment Filter & Dechlorinator

    31050 Hydrologic TallBoy Sediment Filter & Dechlorinator

    $153.99
    MSRP: $183.95
    Save 16%
  • RO5 Tier1 5-Stage Reverse Osmosis System

    5-Stage Reverse Osmosis System by Tier1

    $159.99
    MSRP: $249.99
    Save 36%
  • 200378 Axeon HF1-4021 Reverse Osmosis Membrane

    200378 Axeon HF1-4021 Reverse Osmosis Membrane

    $173.39
    MSRP: $238.99
    Save 27%
  • AF-20-3690-BB Aries Replacement Whole House Fluoride Removal Filter

    AF-20-3690-BB Aries Whole House Fluoride Removal Filter

    $126.05
    MSRP: $171.99
    Save 27%
  • 3M Aqua-Pure APDWS1000 Undersink Water Filter System

    APDWS1000 Undersink Water Filter System by 3M Aqua-Pure

    $422.59
    MSRP: $547.99
    Save 23%
  • IHS22-D4 Trojan UV Disinfection System
  • 3M Aqua-Pure SS12 EPE-316L Whole House Stainless Steel Filter Housing
  • 3M Aqua-Pure SS20 EPE-316L Whole House Stainless Steel Filter Housing
  • 208083 Axeon HF5-2521 Commercial Reverse Osmosis Membrane

    208083 Axeon HF5-2521 Commercial Reverse Osmosis Membrane

    $119.99
    MSRP: $143.99
    Save 17%
  • 208084 Axeon HF5-2540 Commercial Reverse Osmosis Membrane

    208084 Axeon HF5-2540 Commercial Reverse Osmosis Membrane

    $199.99
    MSRP: $259.99
    Save 23%
  • 208125 Axeon HF5-2514 Commercial Reverse Osmosis Membrane

    208125 Axeon HF5-2514 Commercial Reverse Osmosis Membrane

    $109.99
    MSRP: $130.99
    Save 16%
  • Axeon TF-3012-500 Reverse Osmosis Membrane

    Axeon TF-3012-500 Reverse Osmosis Membrane

    $122.99
    MSRP: $161.99
    Save 24%
  • Viqua VP600 Cobalt Series UltraViolet Disinfection System
  • VH410M Viqua Home Plus UltraViolet Water Disinfection System

    VH410M Viqua Home Plus UltraViolet Water Disinfection System

    $875.99
    MSRP: $1,125.00
    Save 22%
  • Viqua VP950 UltraViolet Water Disinfection System

    Viqua VP950 UltraViolet Water Disinfection System (46 gpm)

    $965.99
    MSRP: $1,275.00
    Save 24%
  • BA-ICE-S Viqua UV Disinfection System Controller

    BA-ICE-C Viqua UV Disinfection System Controller

    $249.99
    MSRP: $379.00
    Save 34%
  • BA-ICE-S Viqua UV Disinfection System Controller

    BA-ICE-S Viqua UV Disinfection System Controller

    $126.29
    MSRP: $172.99
    Save 27%
  • BA-ICE-V Viqua UV Disinfection System Controller

    BA-ICE-V Viqua UV Disinfection System Controller

    $144.99
    MSRP: $225.00
    Save 36%
  • S810RL Viqua Water Disinfection System UV Lamp

    S810RL Viqua Water Disinfection System UV Lamp

    $102.69
    MSRP: $122.99
    Save 17%
  • 602805 Viqua Water Disinfection System UV Lamp

    602805 Viqua Water Disinfection System UV Lamp

    $106.99
    MSRP: $127.99
    Save 16%
  • 602806 Viqua Water Disinfection System UV Lamp

    602806 Viqua Water Disinfection System UV Lamp

    $117.69
    MSRP: $141.99
    Save 17%
  • 602807 Viqua Water Disinfection System UV Lamp

    602807 Viqua Water Disinfection System UV Lamp

    $128.39
    MSRP: $154.99
    Save 17%
  • Viqua 602810-102 Lamp and Sleeve Kit for D Model Systems

    Viqua 602810-102 Lamp and Sleeve Kit for D Model Systems

    $128.39
    MSRP: $154.99
    Save 17%
  • 602854 Viqua Water Disinfection System UV Lamp

    602854 Viqua Water Disinfection System UV Lamp

    $188.29
    MSRP: $224.99
    Save 16%
  • 602855 Viqua Water Disinfection System UV Lamp

    602855 Viqua Water Disinfection System UV Lamp

    $224.69
    MSRP: $268.99
    Save 16%
  • 602856 Viqua Water Disinfection System UV Lamp

    602856 Viqua Water Disinfection System UV Lamp

    $263.19
    MSRP: $313.99
    Save 16%
  • 650538 CoolTouch Temperature Management Valve

    650538 Viqua CoolTouch Temperature Management Valve

    $130.99
    MSRP: $175.00
    Save 25%
  • 650580 Viqua Professional UV Water Disinfection System Sensor

    650580 Viqua Professional UV Water Disinfection System Sensor

    $293.99
    MSRP: $430.00
    Save 32%
  • 650627 Viqua PRO Solenoid Valve Kit

    650627 Viqua PRO Solenoid Valve Kit

    $315.99
    MSRP: $450.00
    Save 30%
  • 650703 Viqua Home UV Water Disinfection System Sensor

    650703 Viqua Home UV Water Disinfection System Sensor

    $241.99
    MSRP: $340.00
    Save 29%
  • 650713-007 Viqua UV Disinfection System Controller

    650713-007 Viqua UV Disinfection System Controller

    $338.09
    MSRP: $467.99
    Save 28%
  • 650717-001 Viqua D4 Solenoid Valve Kit with Junction Box

    650717-001 Viqua D4 Solenoid Valve Kit with Junction Box

    $393.99
    MSRP: $565.00
    Save 30%
  • 650717-001 Viqua E4/F4 Solenoid Valve Kit with Junction Box

    650717-001 Viqua E4/F4 Solenoid Valve Kit with Junction Box

    $348.79
    MSRP: $437.99
    Save 20%
  • VIQUA-D4+

    650695-R D4+ Viqua Home Plus UltraViolet Water Disinfection System

    $1,065.99
    MSRP: $1,395.00
    Save 24%
  • VIQUA-E4
  • VIQUA-E4+
  • VIQUA-PRO30
  • VIQUA-S5Q-PV

    S5Q-PV Viqua Specialty UltraViolet Water Disinfection System

    $399.99
    MSRP: $526.00
    Save 24%
  • VIQUA-S8Q-PA

    S8Q-PA Viqua Home UltraViolet Water Disinfection System

    $445.09
    MSRP: $530.99
    Save 16%
  • VIQUA-PRO50
  • VIQUA-E4-V

Items 1 to 48 of 406 total

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